# feat: add a type inferRouterFunctions<AppRouter>
Input schemas defined with Zod does not use the inferred input type
🧙🏻 typescript wizardry
bug: Standard Schema Requires Explicit Passing of `~standard` Property
👻 invalid🐛 bug: unconfirmed⏳ close if no activity
bug: TRPC's inferred mutation input type is incorrect when used with zod4's preprocess
👻 invalid🐛 bug: unconfirmed⏳ close if no activity
`inferProcedureInput` broken in published package
🐛 bug🧙🏻 typescript wizardry